Achim Mueller Sent: 19 July 2006 17:27 > * Ian Shaw wrote on 17 Jul 2006: > > > Another source of interesting positions would be to generate games > > from the Nackgammon start position. With more chequers back, there > > will be lots of interesting holding games, as well as a > decent share > > of backgames, which are another challenging area. > > Frank Berger once told me that he tried to train a net from > nackgammon starting position. IIRC the new net turned out to > play slightly weaker in backgames than the original one, but > I don't have details about his experiment.
Interesting. That's a surprise to me. I would have thought there would be benefits. I haven't played much nackgammon myself, so I don't know how games evolve. Maybe with both sides having four men back, reasonably timed one-sided backgames rarely evolve. Maybe one should consider generating games from lop-sided starting positions, such as normal vs. nack. Another approach might start from prototype holding games and backgames such as found in Kit Woolsey's Encyclopaedia. The idea being that these are common positions, so it is useful to have plenty of data for accurate training. -- Ian _______________________________________________ Bug-gnubg mailing list Bug-gnubg@gnu.org http://lists.gnu.org/mailman/listinfo/bug-gnubg
